Fluid motor and pump or compressor



May 11,1926. 1,584,016

V. DIMINO ET AL FLUID MOTOR, AND PUMP, OR COMPRESSOR Filed Feb. 29, 1924 2 sheets-Sheet 1 1151, n 1s 5 l 11a IH /5 7Ji si 5f@ `sa i,

May 11 ,1926. l l

' v. D1M1No 1:1 A1. 1584016 FLUID MOTOR, AND PUMP, 0R COMPRESSOR Filed Feb. 29, 1924 2 sheets-sheet 2 13 l LZ 5 I t6. 6

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Vince/z za Dimina BY {Jna/in M11/riale mM THE/R A TTORNEYS.

INVENTl-Rs.

Patented May 1l, 195%..

tlbll'li'ED STATES VINCENZO BIB/.EIND AND ONOFRIO MOR-RIALE, F ROCHESTER, NEW YORK.

FL'UD MIOR ANI) PUMIP OR COMPRESSOR.

Application led February 29, 1924. Serial No. 696,068.

The present invention relates to fluid motors, and pumps, or compressors, and an object thereof is to provide an improved construction in which all valves are eliminated. A further object of this invention is to provide a construction in which the fluid may be caused to ow in either direction so that an outlet in one instance may serve as an inlet in another instance, or vice versa, for effecting the reverse action for the apparatus. Another object of the invention is to provide a construction which has a minimum number of parts compactly arranged.

To these and other ends, the invention consists of certain parts and combinations of parts, allof which will be hereinafter described: the novel features being pointed out in the appended claims.

In the drawings:

Fig. 1 is a horizontal section through an apparatus having a steam or air motor and a liquid pump both of which are ccnstructed in accordance with this invention;

'Fig'. 2 is a horizontal section on the line 2 2, Fig. 6;

Fig. 3 is a horizontal section on the line 3 3, Fig. 6;

Fig. l is a diagram for illustrating` the operation of the apparatus;

Fig. 5 is a top view of the apparatus with the cover plates on one side of the motor and the pump removed;

Fig. 6 is a similar view of the opposite side of the apparatus with the cover plates on such side removed;

Fig. 7 is a view of one end of the pump with the cover plate removed and Fig. 8 is a view of one of the channel covering plates.

As both the pump or compressor and the fluid meter are substantially the same in construction, the pump 'or compressor alone will be described in detail and similar reference characters will be used on the parts common to it and the motor.

2 indicates a main casting which is formed with two bores 1 and 3 forming the cylinders` and opening at opposite ends of the casting.

This casting' has onopposite sidesmarginal flanges-1 with which two cover plates` and 5 cooperateV to provide chambers 7 and 8. The ends of the cylinders 1 are closed by cover. plates 9 and 10. Between the two cylinders and on opposite sides of the casting Within the chambers? andfi tvo channels:

117 11a on one side and 12, 12EL on the opposite side are providedseparated by a partition 18. A. cover plate 1li is secured bybolts to the partition 13 and over the channels 11, 11e, 12, 12a. On one side of the casting, and, nearer one end of such casting but in spaced relation to such end, two passageways 16 and 17 are provided, one connecting` the channel 12 with one of the cylinders and the other connecting the' channel 12a with the other cylinder. On the opposite side of the casting and nearer the opposite end, but in spaced relation to such end of the casting, passageways 18 and 19 are provided, one connecting the channel 11 with one of the cylinders and the other connecting the channel 11a with the other cylinder. fit-.each end of the casting two ports 2O and 21 are provided, the channel 20 connecting by a groove 22 with the cylinder 3 and the channel 21 connecting by a groove 23 with the cylinder 1. The cover plates 9 and 10 bolted to the endsof the casting cover the openings 20 and 21 and grooves 22 and 28. The openings 20 connect with the channels 11a and 12, while the openings 21 connect with the channels 11 and 12a, thus establishing communication between each channel and one end of the cylinder so that fluid may flow from such channels to the end under conditions will be hereinafter set forth and from lthe ends of the cylinder back to the channels under another condition as will be hereinafter set forth.

In order to provide communication between the chamber 7 and the two cylinders 1 and 3, parts 25 and 26, one connecting the chamber 7 with the cylinder 1 and the other connecting the chamber 7 with the cylinder 8 are provided,l these ports being situated at the middle ofthe two cylinders.v ln order to provide communication between the chamber 8 and the cylinders 1 and 3, ports 27 and 28 connect the chamber 8 with the cylinder 1 and ports 29 and 30, connect the chamber 8 with the cylinder 3, the ports 27 and 28 being-situated one near-V one end of the @.vlinderl but iii spaced' lelatfm thereto and the other near the opposite end ofl the cyl.- inder 1 but in spaced relationthereto, lying on opposite sides` of. theA port 25, whereasthc ports 29. and 30,1ie in the samerelationvwith reference t0 the Cylinder 3 and. the ether port 2@ A. @0nfluit 3l @cent-Gis with, the @heather 7 and serve- Saas eltinlieteacutlet to the apparatus, whereas a conduit 32 connects with the chamber 8 and serves as an inlet or outlet for the apparatus.

`Within the cylinder 1 operates a piston having four heads 33, 34, 35, and 36 separated by three annular channels 37, 3S and 39, whereas within the cylinder 3 operates a piston having four heads 40, 41, 42 and 43 separated by three annular channels 44, 45, and 46. These two pistons are connected so that they move together. In this instance, the cylinder operating in the chamber 1 has a rod 47 connected by a pitman 48 with a wrist pin 49 on a fly wheel 59 arranged .on a shaft which carries a wheel 51 from which power may be taken, this wheel also carrying' a fly wheel 52 provided with a wrist wheel 53 with which a pitman 54 connects, the pitnian being connected to a piston rod .55 secured to the piston operating in the cylinder 3. The wrist pins 49 and 53 are arranged at angles of degrees from each other with reference to the axis of turning of the shaft to which the wrist pins are secured.

The pump which has been described is driven by a steam or air driven motor which is identical in construction with the pump except that the ports 25a, 26a, 18a, 19, 16, 17a, 27a, 23, 29, and 30a, corresponding to the ports 25, 26, 13, 19.1G.17,27,28. 29 and 30 of the pump are smaller in size. The pump is connected with the motor through pitman rods 56 and 57, one connectingwith 'the piston operating in the cylinder 1 of the pump and also with the piston operating in the cylinder 1 of the motor, whereas the other connects with the chamber operating` in the cylinder 3 of the pumpand with the piston operating in the cylinder 3 of the motor, the adjacentV heads 9 and 10 of the motor and the pump being` bolted together at 53. It will thus be seen that steam, air or gas delivered to the motor will effect the operation of the pump.

In order that the fluid throug'h the motor and the pump may be followed, reference may be had to the diagram illustrated in Fig. 4. In this diagram the reference characters heretofore employed will be followed as closely as possible and when any change is made, it will be pointed out. In this diagram, 1 indicates one of the cylinders. 3 thel other cylinder. Operating in the cylinder 1 is a piston embodying the heads 33, 34 35 and 36, separated by the channels 37.` 33, and 39. Operating in the cylinder 3 is a piston embodying the heads 40, 41, 42 and 43 separated by the annular channels 44. 45 and 46. 21 indicates the ports connecting with the opposite ends of the cylinder 1, and 20 indicates the ports connecting with the opposite ends of the cylinder 3. v25 indicates the port connecting with the cylinder 1 midway between its ends and 26 indicates a port connecting with the cylinder 3 between its ends, both these ports being connected by a passageway 7 which is the equivalent of the chamber 7 of the apparatus and the latter in turn connecting with the conduit 31 serving as the inlet or the outlet as the case may be. The conduit 32 of the apparatus is indicated at 32 and the passageway 3 with its branches leading from the port 32 represents the chamber 3 of thc apparatus. The ports 27, 28, 29 and 30 of thc apparatus are indicated at the ends of the differentl branches of the passageway 8. The passageway 21 at the top end of the cylinder 1 of the diagram connects with the port 13 of the cylinder 3 by'a passageway 11 representing the channel 11 of the apparatus, whereas the port 21 at the bottom of the cylinder 1 of the diagram connects by a passageway 12a, representing the channel 12a of the. apparatus with the port 17. The port 2O at the top of the cylinder 3 of the diagram connects by a passageway 12 (representing the channel 12) with the port 16 of the cylinder 1, whereas the port 2O at the bot,- tom of the cylinder 3 of the diagram connects by a passageway 11L (representing the channel 11a) with a port 19 of the cylinder 1.

The operation of the invention will be understood from the foregoing description, but it may be summarized as follows: Fluid is introduced through either of the conduits 31 or 32 and passes out of the other as an outlet. Assuming that the fluid enters the conduit 31 and is discharged at 32 with the parts in the positions as shown in Fig. 4, the Huid enters the chamber 7 and from the latter enters the cylinder 3 by way of the port 26 between the heads 41 and 42, passing from the cylinder 3 through the port 17 and channel 12a to the cylinder 1 through the port 21, the ports 19 and 16 in the cylinder 1 being closed at this time by the heads 34 and 35. This moves the piston in the cylinder' 1 upwardly and the fluid above the head 33 in the cylinder 1 is forced through the port.21 and channel 11 into the cylinder 3 through the port 18, passing from the cylinder 3 through the port 29 and channel 3 to the outlet conduit 32. As the piston in the cylinder 1 moves upwardly andthe ports 16 and 19 are uncovered and are connected respectively with the ports 2S and 25, the piston in cylinder 3 also moves upwardly from the position shown in Fig. 4, so as to connect the ports 17 and 30 and 26 and 18. The fluid now passes from the chamber 7 through port- 25 into cylinder 1 and from cylinder 1 through port 19 into channel 11"L and thence into the lower end of the cylinder 3 through port 20, thereby assisting to move the piston in the chamber 3 upwardly. At the same time, fluid in the cylinder 3 at the top piston passes through the port 20 into channel 11,` thence to cylinder 1 through port CII 16 and from cylinder 1 through port 28 to the chamber S and out through the exhaust conduit 32. At the same time the iuid at the lower end of the cylinder 1 passes from the cylinder through the port 21 into channel 12, thence through the port 17 into the cylinder 3 and trom the cylinder 3 through the port 30 to the chamber 8 and out through the exhaust conduit 32. Fluid also at this time enters the cylinder 3 'from the chamber 7 by way oit the port 26 and out from the cylinder 3 through the port 18 by way ot the channel 11 into the top end or" the cylinder 1 by way of port 21. In this way reciprocating motion is imparted toV both the pistons. Both of the pistons are connected together so'that the relative positions of the pistons are insured. it is apparent that the reversal oit' the motor or compressor may be obtained by admitting tluid at 32 and exhausting it at 31.

From the foregoing it will be seen that there has been provided a construction which is adapted to act as a motor and pump or compressor. Inthis construction, all valves are eliminated. The iiuid may ilow in either direction through the apparatus so as to obtain a reverse action of the apparatus.

The construction embodies but a few parts which are inexpensive to manufacture.

lha-t we claim as our invention and desire to secure by Letters Patent is:

1. An apparatus or" the class described .-omprising two cylinders, each cylinder having ports at opposite ends, a central port, two intermediate ports arranged on opposite sides of the central port between the latter and the end ports, two other intermediate ports situated between the first mentioned intermediate ports and the end ports, means providing communication between the end ports of one cylinder and the iirst mentioned intermediate ports ot the other cylinder, each end port ot such irst mentioned cylinder being connected to one of the first mentioned intermediate ports of the other' cylinder on the same side of the central ports of the two cylinders with such intermediate ports, means providing communication between the end ports oit the other cylinders and the iirst mentioned intermediate ports ot the iirst mentioned cylinder', each end port of the said other or second mentioned cylinder being connected to that one of the first mentioned intermediate ports ot the iirst mentioned cylinder on the side of the center port ot said tirst mentioned cylinder, opposite that on which the other end port ot' the second mentioned cylinder connecting therewith is situated, two conduits either of which may act as an inlet or an out-let, means providing communication between one ot said conduits and both of the central ports of the two cylinders, means providing communication between the other conduit and the second mentioned intermediate ports of the two cylinders, and two pistons each operating in one oi' the cylinders and each having three chambers arranged to control the first mentioned and second mentioned intermediate ports to effect such a iiow through the ports of the two cylinders that will produce reciprocating movements ot the pistons.

2. An apparatus ot the class described comprising a casting having two parallel cylinders opening at opposite ends and marginal l[langes on oppositesides ot the two cylinders, cover plates cooperating with said anges to provide chambers on the two sides oit the cylinders, one chamber acting as an inlet chamber and the other as an outlet chamber, two channels provided on each side of the casting between the two cylinders, two cover plates each covering the two channels on one side ot the cylinders, the casting being provided with ports providing communication between each channel and one end ot one of the cylinders, the casting also being provided with ports providing communication between each channel and one oi each oi the cylinders at a point between the middle and an end of the cylinder, the casting also being provided with ports providing communication between one of the chambers and both ot the cylinders atV the center ot both cylinders, and the casting also being provided with ports connecting the other chamber and both of the cylinders, two ports being provided for each cylinder situated on opposite sides of the center of said cylinder, closures for the ends of the cylinders, and pistons operating in the cylinders and provided each with three chambers, said pistons being arranged to cover and uncover the ports connecting with the channels and also the two ports of each cylinder on the opposite sides of the center ot the latter and communicating with the aforesaid chamber.

3. An apparatus of the class described comprising a casting embodying two parallel cylinders opening at opposite ends and having marginal i'langes on opposite sides to provide chambers, said casting also having two channels on opposite sides within the chambers, ports connecting said channels with the end of the cylinders, ports connecting the chambers with the cylinders, cover plates for the channels, cover plates for the chambers, cover plates for the ends of the cylinders, and pistons operating in the cylinders.

VINCENZO DIMINO. ONOFBIO MORRALE. 

